Tag Archives: HiRISE

HiRISE: Bouncing boulders

Most debris on crater walls slides straight downhill. In this HiRISE image we see examples of boulders that have bounced downhill, not necessarily vertically. A prominent example looks like a dotted line from the top of the crater wall where … Continue reading

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HiRISE: A crater on the south polar layered deposits

This image is part of a campaign to image potential impact craters in the south polar layered deposits (ice cap). This feature looks like a strong candidate for an impact crater because it is very circular are still has a … Continue reading

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HiRISE: Clay-rich terrain in the Eridania Basin

HiRISE reveals small-scale shapes that often correlate with mineral units and provides information about stratigraphy (i.e., what’s on top and relative ages). This image was acquired for co-analysis with a spectrometer instrument also on our spacecraft called CRISM (Compact Reconnaissance … Continue reading

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HiRISE: The hills in Juventae Chasma

This image captures some of the geologic diversity of Mars. There are hills of ancient terrains on the floor of Juventae Chasma, surrounded by younger sediments, including dark sand sheets and dunes that are likely active today. The hills are … Continue reading

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HiRISE: Dramatic changes over the south polar cap

The south polar residual cap of carbon dioxide ice rapidly changes. This image was planned as an almost exact match to the illumination and viewing angles of a previous one we took in August 2009. The pits have all expanded … Continue reading

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HiRISE: Frost-covered dunes

Frost-covered dunes. Sprinkled with hopes and dreams, no less. This is a relatively new monitoring site that seems to have heavy carbon-dioxide snowfall. HiRISE Picture of the Day archive [More at links]

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HiRISE: Grjota Valles

Grjotá Valles. Grjotá Valles is one of Mars’ four Amazonian-aged, fissure-headed, catastrophic flood channels. It originates at the northwestern-most Cerberus Fossa and stretches several hundred kilometers eastward and southward. HiRISE Picture of the Day archive [More at links]

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HiRISE: A ridge on the plains

A ridge on the plains. This ridge on rocky plains is located not to far from Daedalia Planum, a featureless plain with multiple lava flows and small craters. HiRISE Picture of the Day archive [More at links]

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HiRISE: Buried by time

Buried by time. Over time, this crater was buried by folded deposits, although we can still tell it is an impact crater. However, we can still see ridges and gullies. Are these ridges made of material that proved more resistant … Continue reading

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HiRISE: Layered bedrock to the northwest of Hellas Planitia

Layered bedrock to the northwest of Hellas Planitia. There are some very nice geologic contacts in this region. HiRISE Picture of the Day archive [More at links]

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